<h1>文本对象 - c,d,v,y 等命令后接文本对象，一般为：&lt;范围 i/a&gt;&lt;类型&gt;</h1>
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<span id="$">$</span>                   <span>到行末</span>
<span id="0">0</span>                   <span>到行首</span>
<span id="^">^</span>                   <span>到行首非空字符</span>
<span id="tx">tx</span>                  <span>光标位置到字符 x 之前</span>
<span id="fx">fx</span>                  <span>光标位置到字符 x 之处</span>
<span id="iw">iw</span>                  <span>整个单词（不包括分隔符）</span>
<span id="aw">aw</span>                  <span>整个单词（包括分隔符）</span>
<span id="iW">iW</span>                  <span>整个 WORD（不包括分隔符）</span>
<span id="aW">aW</span>                  <span>整个 WORD（包括分隔符）</span>
<span id="is">is</span>                  <span>整个句子（不包括分隔符）</span>
<span id="ib">ib</span>                  <span>小括号内</span>
<span id="ab">ab</span>                  <span>小括号内（包含小括号本身）</span>
<span id="iB">iB</span>                  <span>大括号内</span>
<span id="aB">aB</span>                  <span>大括号内（包含大括号本身）</span>
<span id="i)">i)</span>                  <span>小括号内</span>
<span id="a)">a)</span>                  <span>小括号内（包含小括号本身）</span>
<span id="i]">i]</span>                  <span>中括号内</span>
<span id="a]">a]</span>                  <span>中括号内（包含中括号本身）</span>
<span id="i}">i}</span>                  <span>大括号内</span>
<span id="a}">a}</span>                  <span>大括号内（包含大括号本身）</span>
<span id="i'">i'</span>                  <span>单引号内</span>
<span id="a'">a'</span>                  <span>单引号内（包含单引号本身）</span>
<span id="i&quot;">i&quot;</span>                  <span>双引号内</span>
<span id="a&quot;">a&quot;</span>                  <span>双引号内（包含双引号本身）</span>
<span id="2i)">2i)</span>                 <span>往外两层小括号内</span>
<span id="2a)">2a)</span>                 <span>往外两层小括号内（包含小括号本身）</span>
<span id="2f)">2f)</span>                 <span>到第二个小括号处</span>
<span id="2t)">2t)</span>                 <span>到第二个小括号前</span>
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